From 69d60eb96ae8a73cf9b79cf28051caf973006011 Mon Sep 17 00:00:00 2001 From: Vivek Goyal Date: Wed, 9 Mar 2011 08:27:37 +0100 Subject: blk-throttle: Use blk_plug in throttle dispatch Use plug in throttle dispatch also as we are dispatching a bunch of bios in throttle context and some of them might merge. Signed-off-by: Vivek Goyal Signed-off-by: Jens Axboe --- block/blk-throttle.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'block') diff --git a/block/blk-throttle.c b/block/blk-throttle.c index b8dcdc2663a..658ee505315 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -770,6 +770,7 @@ static int throtl_dispatch(struct request_queue *q) unsigned int nr_disp = 0; struct bio_list bio_list_on_stack; struct bio *bio; + struct blk_plug plug; spin_lock_irq(q->queue_lock); @@ -798,8 +799,10 @@ out: * immediate dispatch */ if (nr_disp) { + blk_start_plug(&plug); while((bio = bio_list_pop(&bio_list_on_stack))) generic_make_request(bio); + blk_finish_plug(&plug); } return nr_disp; } -- cgit v1.2.3-70-g09d2